Samsung Galaxy S25+

At a glance. The Samsung Galaxy S25+ is currently sold on contract by O2, on O2. It is available in 2 storage sizes (256GB, 512GB); larger sizes add to the price, so pick the smallest you can live with. The cheapest deal by effective monthly cost is £39.28 a month with £30.00 upfront over 36 months on O2, which works out at about £32.11 a month all in. If you would rather buy it outright, the lowest SIM-free price we track is £579.99 from O2 — worth comparing against the contracts above, paired with a SIM-only plan. 48 of the deals are for refurbished handsets, which are usually noticeably cheaper; use the condition filter to compare new and refurbished separately. Key specs: 6.7" dynamic ltpo amoled 2x, a Qualcomm SM8750-AB Snapdragon 8 Elite (3 nm) chip, IP68 water resistance.